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Narita→Cheongju NRT→CJJ

NRT→CJJCJJ→NRT
98.7% On-time departure -- On-time arrival

Cancellation: 0% / Avg delay when late: 37min

Some airlines do not publish gate departure/arrival times. For those flights we estimate the gate times from the takeoff/landing record and the airport's measured taxi times (validated at 3.5 min mean error, 94.4% agreement on the on-time call). Without the estimate, those airlines' flights would drop out of the sample entirely and cross-airline comparison would break.

Flight time & service

Flight time (scheduled)
2h 25m
Flights per day
2.8
Airlines serving
1

Flight time is the median scheduled gate-to-gate (block) time; the actual average excludes cancelled and diverted flights

By carrier

On-time departureAvg delay
when late
n
RF 1
98.7%+37minn=76

Avg delay when late counts only flights that departed more than 15 minutes behind schedule

By day of week

On-time departureAvg delay
when late
n
Mon
100%—n=10
Tue
100%—n=8
Wed
90.9%+37minn=11
Thu
100%—n=12
Fri
100%—n=12
Sat
100%—n=12
Sun
100%—n=11

Avg delay when late counts only flights that departed more than 15 minutes behind schedule / Faded rows are indicative (n<10); below n=5 no rate is shown

By departure time

On-time departureAvg delay
when late
n
9:00-12:00
100%—n=23
12:00-15:00
100%—n=27
18:00-21:00
96.2%+37minn=26

Avg delay when late counts only flights that departed more than 15 minutes behind schedule

Monthly trend

On-time departureAvg delay
when late
n
2026-10
100%—n=9
2026-09
97.6%+27minn=82
2026-08
88.9%+47minn=54
2026-07
90.9%+23minn=33

Avg delay when late counts only flights that departed more than 15 minutes behind schedule / Faded rows are indicative (n<10); below n=5 no rate is shown

Flights on this route 3

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Updated: / Last 28 days

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